Top 14 Bioenergy startups

Updated: Dec 14, 2025
|
These startups develop new technologies to extract energy from biomass and store energy in the form of biofuel.
1
Sunfire
Country: Germany | Funding: €918M
SunFire provides liquid fuels and combustibles. It offers petrol and diesel from carbon dioxide and water by coupling renewable energy, as well as kerosene, waxes, methanol, and methane/synthetic natural gas. The company also allows storage of renewable electrical power in liquid fuels with storage, loading, and transport capabilities.
2
Enerkem
Country: Canada | Funding: $871.5M
Enerkem is a cleantech company transforming waste into transportation biofuels, renewable chemicals and everyday products.
3
Sierra Energy
Country: USA | Funding: $90M
Sierra Energy’s blast furnace heats trash to 4,000 degrees and then harvests the gas to make plastics and fuel.
4
BioBTX
Country: Netherlands | Funding: €75M
BioBTX replaces oil for biomass & waste as a resource for the production of aromatics. With its technology, BioBTX can convert end-of-life waste plastics and biomass towards circular and sustainable chemical building blocks.
5
Arbor Energy
Country: USA | Funding: $68.5M
A carbon removal and storage company delivering negative emissions energy. Arbor’s innovative system generates clean electricity transforming plentifully available organic waste—like overgrown brush, crop residues, and food waste—into fuel for an engine.
6
Enexor Bioenergy
Country: USA | Funding: $22M
Enexor BioEnergy developed a small-scale, renewable energy system that converts organic and biomass waste into clean electricity as well as hot and chilled water. This combined heating and power system has broad applications for commercial, industrial and institutional use.
7
Qairos Energies
Country: France | Funding: €18.8M
Qairos Energies turns hemp biomass to hydrogen that will be converted into electricity for fuel cells to power buses and trains.
8
BeFC Bioenzymatic Fuel Cells
Country: France | Funding: €19M
BeFC produces biofuel cells that replace low-power batteries in Iot electronics and wearables, making them more environmentally sustainable. These cells generate electricity using paper and enzymes - proteins that speed up chemical reactions and extract electrons from organic matter (that is used as fuel). When a drop of water lands on the paper, a reaction occurs: the enzyme "oxidizes" the glucose, generating an electric current. These cells do not use rare metals (or any metals at all). They are flexible, disposable and recyclable. The company also produces two finished products: BeFC TAG - an intelligent logistics tag for multi-factor logistics and BeFC PATCH - a smart medical patch for remote, real-time patient monitoring.
9
Evergaz
Country: France
Evergaz, the French and European biogas greentech, and SICAE-OISE, a distributor and electricity supplier present in 185 municipalities.
10
Greenjoules
Country: India | Funding: ₹330M
Greenjoules is a green energy technology startup that specializes in making renewable biofuels.
11
Purpose Energy
Country: USA | Funding: $2.4M
Purpose Energy produces renewable energy from organic waste produced by the brewing industry.
12
Green Fortress Engineering
Country: USA | Funding: $225K
Green Fortress Engineering offers biomass conversion and hydrogen storage solutions.
13
Stadsgas
Country: Netherlands
Stadsgas is a sustainable initiative, which converts food waste into biogas, organic fertilisers, and electricity. It aims to reuse food waste and offer it to more destinations than ever, thereby reducing unnecessary energy loss.
14
KPower
Country: South Korea
KPower Inc provides companies with steam energy generated in smoke free biomass boiler with renewable fuels. This reduces greehouse gas and greatly contributes to carbon neutrality.
  See also:
Alexander Gillet
Editor: Alexander Gillet
Alexander Gillet is a senior editor for EnergyStartups. He has a deep background in energy sector and startups. Alexander graduated from Emlyon Business School, a leading French business school specialized in entrepreneurship. He has helped several non-profit organizations dedicated to promoting environmental education and sustainability and has written over 250 articles on energy technology for various websites. In his free time, Alexander enjoys yoga, camping and exploring the Blue Ridge Mountains. You can contact Alexander at alexgillet(at)energystartups(dot)com